package org.phoenixframework.oauth2.server.config;

import lombok.AllArgsConstructor;
import org.phoenixframework.oauth2.server.config.security.UserDetailsServiceImpl;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.io.ClassPathResource;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.security.oauth2.config.annotation.configurers.ClientDetailsServiceConfigurer;
import org.springframework.security.oauth2.config.annotation.web.configuration.AuthorizationServerConfigurerAdapter;
import org.springframework.security.oauth2.config.annotation.web.configuration.EnableAuthorizationServer;
import org.springframework.security.oauth2.config.annotation.web.configurers.AuthorizationServerEndpointsConfigurer;
import org.springframework.security.oauth2.config.annotation.web.configurers.AuthorizationServerSecurityConfigurer;
import org.springframework.security.oauth2.provider.token.TokenEnhancer;
import org.springframework.security.oauth2.provider.token.TokenEnhancerChain;
import org.springframework.security.oauth2.provider.token.store.JwtAccessTokenConverter;
import org.springframework.security.rsa.crypto.KeyStoreKeyFactory;

import java.security.KeyPair;
import java.util.ArrayList;
import java.util.List;

/**
 * Created by IntelliJ IDEA.
 *
 * @author doublelifeke
 * Email: hautxxxyzjk@163.com
 * DateTime: 2021/6/4 19:30
 * Description: 认证服务器配置
 */
@AllArgsConstructor
@EnableAuthorizationServer
@Configuration
public class AuthorizationServerConfig extends AuthorizationServerConfigurerAdapter {

    private final PasswordEncoder passwordEncoder;

    private final UserDetailsServiceImpl userDetailsService;

    private final AuthenticationManager authenticationManager;

    private final JwtTokenEnhancer jwtTokenEnhancer;

    @Override
    public void configure(ClientDetailsServiceConfigurer clients) throws Exception {
        clients.inMemory()
                .withClient("client")
                .secret(passwordEncoder.encode("secret"))
                .scopes("all")
                .authorizedGrantTypes("password", "refresh_token")
                // token时间 60 * 60
                .accessTokenValiditySeconds(3600)
                // refresh_token时间 24 * 60 * 60
                .refreshTokenValiditySeconds(86400);
    }

    @Override
    public void configure(AuthorizationServerEndpointsConfigurer endpoints) throws Exception {
        TokenEnhancerChain tokenEnhancerChain = new TokenEnhancerChain();
        List<TokenEnhancer> tokenEnhancers = new ArrayList<>();
        tokenEnhancers.add(jwtTokenEnhancer);
        tokenEnhancers.add(accessTokenConverter());
        // 配置JWT的内容增强器
        tokenEnhancerChain.setTokenEnhancers(tokenEnhancers);
        endpoints.authenticationManager(authenticationManager)
                // 配置加载用户信息的服务
                .userDetailsService(userDetailsService)
                .accessTokenConverter(accessTokenConverter())
                .tokenEnhancer(tokenEnhancerChain);
    }

    @Override
    public void configure(AuthorizationServerSecurityConfigurer security) throws Exception {
        security.allowFormAuthenticationForClients();
    }

    @Bean
    public JwtAccessTokenConverter accessTokenConverter() {
        JwtAccessTokenConverter jwtAccessTokenConverter = new JwtAccessTokenConverter();
        jwtAccessTokenConverter.setKeyPair(keyPair());
        return jwtAccessTokenConverter;
    }

    @Bean
    public KeyPair keyPair() {
        //从classpath下的证书中获取秘钥对
        KeyStoreKeyFactory keyStoreKeyFactory = new KeyStoreKeyFactory(new ClassPathResource("jwt.jks"), "123456".toCharArray());
        return keyStoreKeyFactory.getKeyPair("jwt", "123456".toCharArray());
    }
}
